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Comparison · PM

Redmine vs Sugar Calendar

A side-by-side editorial comparison of Redmine and Sugar Calendar — release velocity, themes, recent moves, and the top alternatives to consider.

Redmine vs Sugar Calendar: at a glance

FeatureRedmineSugar Calendar
SectorPMPM
Velocity score6.35.0
Sparks · 30d00
Top themesopen-source, project-management, rails-8, webhookswordpress-plugins, event-management, elementor-integration, ticketing
Last editorial update1mo ago6h ago
WebsiteVisit →Visit →

What is Redmine?

Redmine hits 7.0 with a Rails 8 jump and its first webhooks, 20 years in

Redmine is a 20-year-old open-source, Rails-based project management tool that just shipped 7.0.0 on its anniversary. The 7.0 release completes the UI modernization begun in 6.0/6.1 and adds a Rails 8 migration plus webhook event triggers. In parallel, the project keeps three older branches (5.1, 6.0, 6.1) patched with coordinated security releases.

Read the full Redmine trajectory →

What is Sugar Calendar?

The changelog turned into a how-to blog — capability news now arrives disguised as tutorials.

Sugar Calendar has stopped publishing version posts. The last three entries read as tutorials — building event pages in Elementor, setting tiered ticket prices for a single event, attaching a Zoom meeting without copying links by hand — where earlier entries were explicit 3.x release announcements. The bodies are truncated teasers, so what shipped versus what was always possible is not stated outright.

Read the full Sugar Calendar trajectory →

Redmine vs Sugar Calendar: editorial side-by-side

Redmine logo6.3

Redmine hits 7.0 with a Rails 8 jump and its first webhooks, 20 years in

◆ Current state

Redmine is a 20-year-old open-source, Rails-based project management tool that just shipped 7.0.0 on its anniversary. The 7.0 release completes the UI modernization begun in 6.0/6.1 and adds a Rails 8 migration plus webhook event triggers. In parallel, the project keeps three older branches (5.1, 6.0, 6.1) patched with coordinated security releases.

◆ Where it's heading

The arc is modernization plus integration: after two releases spent redesigning the interface, 7.0 resets the platform onto Rails 8 and introduces native webhooks — Redmine's first step toward the automation surface that hosted trackers already assume. The disciplined multi-branch security backporting suggests the team will keep legacy users supported rather than forcing the jump to 7.0.

◆ Prediction

Expect a 7.0.x maintenance line with bug fixes and security backports to follow the major, mirroring how 6.0 was stabilized, and incremental expansion of the new webhook triggers.

S5.0

The changelog turned into a how-to blog — capability news now arrives disguised as tutorials.

◆ Current state

Sugar Calendar has stopped publishing version posts. The last three entries read as tutorials — building event pages in Elementor, setting tiered ticket prices for a single event, attaching a Zoom meeting without copying links by hand — where earlier entries were explicit 3.x release announcements. The bodies are truncated teasers, so what shipped versus what was always possible is not stated outright.

◆ Where it's heading

Two things are moving at once. The product is filling in the integration surface an events plugin needs — page builder, video conferencing, flexible ticket pricing — and the communication has shifted from version-led to problem-led. That makes the feed better for prospective buyers and worse as a changelog: the release boundary is now invisible.

◆ Prediction

Expect more problem-framed posts covering individual capabilities rather than a numbered 3.8 announcement. These entries do not say whether the Elementor and Zoom work ships as core or as paid add-ons, so the packaging is unclear.

Alternatives to Redmine and Sugar Calendar

Other PM products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Redmine or Sugar Calendar.

See all Redmine alternatives → · See all Sugar Calendar alternatives →

Recent activity from Redmine and Sugar Calendar

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 22h agoSugar CalendarDesign Your Event Pages in Elementor
  2. 7d agoSugar CalendarSet Different Ticket Prices for One Event
  3. 15d agoSugar CalendarAdd a Zoom Meeting to Any Event Without the Link-Juggling
  4. 1mo agoRedmineRedmine 7.0.0 is now available
  5. 1mo agoRedmineRedmine 6.1.3, 6.0.10 and 5.1.13 released
  6. 4mo agoRedmineRedmine 6.1.2, 6.0.9 and 5.1.12 released
  7. 4mo agoRedmine1.4.x series
  8. 4mo agoRedmine1.1.x series
  9. 4mo agoRedmine1.2.x series
  10. 1y agoSugar CalendarSugar Calendar 3.7: Event Management Just Got Easier – RSVPs, Tags, Speakers and More
  11. 1y agoSugar CalendarIntroducing Sugar Calendar 3.6 – Enhanced Recurring Events & More Flexible Payment Options
  12. 1y agoSugar CalendarIntroducing Sugar Calendar 3.5 – The Smarter Way to Manage Event Venues

Frequently asked questions

What is the difference between Redmine and Sugar Calendar?

They serve adjacent needs but don't currently overlap on shipped themes. Redmine is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Redmine better than Sugar Calendar?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Redmine is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other PM products to evaluate alongside.

What are the best alternatives to Redmine?

Top Redmine alternatives in PM are ranked by recent ship velocity. Browse the "Redmine alternatives" section above for the current picks, or visit /alternatives/redmine for the full list with editorial commentary on each.

What are the best alternatives to Sugar Calendar?

Top Sugar Calendar alternatives in PM are ranked by recent ship velocity. Browse the "Sugar Calendar alternatives" section above for the current picks, or visit /alternatives/sugar-calendar for the full list with editorial commentary on each.